This is the McLaren 675LT. In basic terms it’s the ‘longtail’ version of the 650S. Aside from the proud heritage of the longtail name to the McLaren brand, in this context longtail means the 675LT is 100kg lighter than the 650S, has more power, is more extreme and is, of course, a bit faster as well.
The 675LT is now on show in Geneva and McLaren announced the production run will be limited to 500 units worldwide.
At 1230kg it has a power to weight ratio of 549PS/tonne. Peak power is 675PS, as the model’s name suggests, and it can reach 100km/h in 2.9 seconds, 200km/h in 7.9 seconds and has a top speed of 330km/h.
In actual terms “longtail” is apparent in name only. Despite being 34mm longer there are no extensive changes to the car’s dimensions, other than the rear airbrake being 50 per cent larger than found on the 650S.
Where the 675LT does differ, aside from its weight loss, is with extensive changes to the M838TL engine. Around half of its components are different to the 650S. Modifications include more efficient turbos, uprated cylinder heads and manifolds, lightened conrods, a revised camshaft and a faster flowing fuel pump.
In future the longtail name will be used as a marketing device to indicate more extreme models, in much the same was as GT3 is used by other marques.
Full details can be found after the break, including video of the McLaren Automotive press conference from the Geneva Motor Show.